Re: [Xen-ia64-devel] [PATCH] Display the information in fault handler

[Tristan Gingold <Tristan.Gingold@xxxxxxxx>]

Le Vendredi 28 Avril 2006 12:16, Tetsu Yamamoto a écrit :
> Hi,
>
>   This patch modifies the interruption handler to display the
> information about the interruption and then do panic in the case of the
> fault occurred in hypervisor, or reflect to the guest when handling the
> fault in guest.
>
>   The modification is as follows:
> 1. In each handler in IVT, the procedure is added to branch to fault
> handler or reflection according to ipsr.cpl.
> 2. In the case of the fault occurred in hypervisor(ipsr.cpl==0), the
> fault handler displays the information (vector, registers, and stack by
> calling show_registers()), and then do panic().
> 3. In the case of the fault occurred in guest(ipsr.cpl!=0), it is
> reflected to the guest.
>
>   With this modification, some faults which were always treated to be
> reflected to the guest are changed to do panic when they occur in
> hypervisor.
Hi,

it is a good idea to improve fault handling.

BTW, why do you want to reflect nested_dltb_miss ?  This fault can never 
happen in domains, because they are always run with psr.ic=1.

Tristan.



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